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Shared-based Compensation (Tables)
 3 Months Ended
Mar. 31, 2018
Share-based Compensation [Abstract]  
Schedule of Assumptions Used

The weighted average input assumptions used were as follows:







 

 

 

 



2018

 

2017

 



 

 

 

 

Expected term (in years)

 6.4 

 

 6.0 

 

Risk-free interest rate

 2.64% 

 

 2.05% 

 

Expected volatility

 33.31% 

 

 38.33% 

 

Dividend yield

 2.88% 

 

 2.40% 

 



 

 

 

 



Schedule of Share-based Compensation, Stock Options, Activity

The following table is a summary of our stock option activity:







 

 

 

 

 

 

 

 

 

 



Three months ended March 31,

 



2018

 

2017

 



Shares

 

Weighted-Average Exercise Price

 

Shares

 

Weighted-Average Exercise Price

 

(shares in thousands)

 

 

 

 

 

 

 

 

 

 

Outstanding at beginning of period

 106 

 

$

 31.18 

 

 129 

 

$

 28.22 

 

Granted

 51 

 

 

 66.68 

 

 38 

 

 

 44.73 

 

Exercised

 (21)

 

 

 28.87 

 

 (21)

 

 

 27.38 

 

Forfeited

 -

 

 

 -

 

 (9)

 

 

 38.18 

 

Outstanding at end of the period

 136 

 

$

 44.79 

 

 137 

 

$

 32.20 

 

Exercisable at end of the period

 60 

 

$

 29.94 

 

 63 

 

$

 28.15 

 



Restricted Stock Activity

The following table summarizes our restricted stock activity: 







 

 

 

 

 

 

 

 

 



Three months ended March 31,



2018

 

2017



Shares

 

Weighted-Average Grant Date Fair Value

 

Shares

 

Weighted-Average Grant Date Fair Value

(shares in thousands)

 

 

 

 

 

 

 

 

 

Outstanding at beginning of period

 129 

 

$

 32.15 

 

 215 

 

$

 27.69 

Granted

 16 

 

 

 66.68 

 

 44 

 

 

 44.73 

Vested

 (69)

 

 

 28.35 

 

 (55)

 

 

 25.94 

Forfeited

 -

 

 

 -

 

 (6)

 

 

 32.80 

Outstanding at end of the period

 76 

 

$

 42.99 

 

 198 

 

$

 31.79